Ramanjaneyulu, A. V., A. Madhavi, M. V. Nagesh Kumar, and T. L. Neelima. “Response of Rainfed Castor to Soil and Foliar Application of Zinc and Iron Micronutrients”. International Journal of Bio-resource and Stress Management 12, no. Jun, 3 (June 18, 2021): 158–164. Accessed September 21, 2025. https://ojs.pphouse.org/index.php/IJBSM/article/view/4088.